MULTIMODE SENSOR DEVICES

摘要

The disclosure provides BMDs that have multiple device modes depending on operational conditions of the devices, e.g., motion intensity, device placement, and/or activity type. The device modes are associated with various data processing algorithms. In some embodiments, the BMD is implemented as a wrist-worn or arm-worn device. In some embodiments, methods for tracking physiological metrics using the BMDs are provided. In some embodiments, the process or the BMD applies a time domain analysis on data provided by a sensor of the BMD when the data has a high signal (e.g., high signal-to-noise ratio), and applies a frequency domain analysis on the data when the data has a low signal, which contributes to improved accuracy and speed of biometric data.

主权项

1. A method of tracking a user's physiological activity using a worn biometric monitoring device having one or more sensors providing sensor output data indicative of the user's physiological activity, the method comprising:
analyzing sensor output data provided by the worn biometric monitoring device to determine that the sensor output data has a relatively low signal-to-noise ratio (SNR) while the user is active; collecting sensor output data for a duration sufficient to identify a periodic component of the collected sensor output data; applying a frequency domain analysis to the collected sensor output data to process and/or identify the periodic component; and determining a physiological metric of the user from the periodic component of the collected sensor output data.